private function rsa($public_or_private_key, $padding_mode)
{
if ($public_or_private_key instanceof JOSE_JWK) {
$rsa = $public_or_private_key->toKey();
} else {
if ($public_or_private_key instanceof Crypt_RSA) {
$rsa = $public_or_private_key;
} else {
$rsa = new Crypt_RSA();
$rsa->loadKey($public_or_private_key);
}
}
$rsa->setHash($this->digest());
$rsa->setMGFHash($this->digest());
$rsa->setSignatureMode($padding_mode);
return $rsa;
}
<?php
set_time_limit(0);
if (file_exists('private.key')) {
echo base64_encode(file_get_contents('private.key'));
} else {
include 'Crypt/RSA.php';
$rsa = new Crypt_RSA();
$rsa->setHash('sha1');
$rsa->setMGFHash('sha1');
$rsa->setEncryptionMode(CRYPT_RSA_ENCRYPTION_OAEP);
$rsa->setPrivateKeyFormat(CRYPT_RSA_PRIVATE_FORMAT_PKCS1);
$rsa->setPublicKeyFormat(CRYPT_RSA_PUBLIC_FORMAT_PKCS1);
$res = $rsa->createKey(1024);
$privateKey = $res['privatekey'];
$publicKey = $res['publickey'];
file_put_contents('public.key', $publicKey);
file_put_contents('private.key', $privateKey);
echo base64_encode($privateKey);
}
